Question

how biogas is prepared

Answer 1

hey mate here is ur answer

Biogas refers to a mixture of different gasesproduced by the breakdown of organic matterin the absence of oxygen. Biogas can be produced from raw materials such as agricultural waste, manure, municipal waste, plant material, sewage, green waste or food waste. Biogas is a renewable energy source.
Biogas is produced by anaerobic digestionwith methanogen or anaerobic organisms, which digest material inside a closed system, or fermentation of biodegradable materials.[1]This closed system is called an anaerobic digester, biodigester or a bioreactor.[2]

i hope it is helpful for u

Answer 2

Biogas is produced using well-established technology in a process involving several stages:

Biowaste is crushed into smaller pieces and slurrified to prepare it for the anaerobic digestion process. Slurrifying means adding liquid to the biowaste to make it easier to process.

Microbes need warm conditions, so the biowaste is heated to around 37 °C.

The actual biogas production takes place through anaerobic digestion in large tanks for about three weeks.

In the final stage, the gas is purified (upgraded) by removing impurities and carbon dioxide.

After this, the biogas is ready for use by enterprises and consumers, for example in a liquefied form or following injection into the gas pipeline network.